Stock pusher



F. L. CONE STOCK PUSHER Marc-h 27, 1928.

Filed July 14, 1923 Patented Mar. 27, 1928.

)UNITED STAT-Es FRANK L. GONE, F WINDSORy VERMONT.

STOCK PUSHER.

Applicatio sied July 174,

This invention relates to stock pushers' such as are used to .feed stockV inrautomatic lathes, screw machines and thelike and comprises a plurality of interfitting,y stock-engaging jaws held in assembled relation by springs which cause the jaws to engage the stock. One of these jaws is carriedby being preferably integral with a sleeve to which connection may be made for moving the jaws j. j

' integral jaw or` jaws and held assembled to feed the stock.

For a more complete understanding of this invention reference may be made to the accompanying drawings in which Figure 1 is a side elevation of the pusher.

Figure 2 is a central longitudinal section through the device on line 2-2 of Figure 1.

Figure 3 is anv end view.

VReferring to these Figures, 1 represents a sleeve threaded at its rear end as at 2 for attachment thereto of theV usual mechanism by which reciprocating motion is imparted to the pusher to feed the stock in the usual manner. This sleeve l is cut away angularly as shown at 3 to form a segmental stoclegripping jaw 4 projecting from one end of the main portion of the sleeve and integral therewith.` At its outer end this jaw isprovided with upwardly extending lugs 5. Cooperating with this jaw 4 is a complemental jaw 6 formed loosely to interiit the cut away portion of the sleeve and having notches 7 in its outer end within which the lugsv extend. The jaw 6 is thus held when in assembled relation between the end face 8 of the cut away portion of the sleeve and the lug 5 against disassembly with relation to the jaw 4 in an axial relation,`and with the confronting faces of the aws substantially uniformly spaced from end to end to properly grip the stock passing therebetween through the space of substantially uniform size from end to end where it is engaged by the jaws. The jaws 4 and 6 are prevented from disassem` bly by relative lateral motion by means of one or more split spring rings 10 which embrace the ljaws and rest within the limits of a portion 12 of reduced diameter on the outer faces of these jaws between annular shoulders 14 to retain the rings thereon. These springs 10 not only hold the jaws from relative lateral disassembly, but also hold them into clamping relation to the stock which passes through the sleeve 1 in the usual manner. As herein shown three springs 10 are employed but the number may be made more or less as may be desired and the springs may 1923. Serial No. 651,528.

be of variable widths and thicknesses or both in order to provide for an adjustment of the pressure by which they are held together .and

into engagement `with the stock.` flVhile as. shown two j aws are employed, it is evidentl that more than two might be employed if de sired, of which one or more may beintegral with the supporting sleeve and one or more..

separate. therefrom vand interlitting with the therewith by the clamping springs.

Having thus described an embodiment of this invention it should be evident that various modifications might be made therein without departing from its spirit or scope as defined by the appended claims. y

I claim: v Y

l. A Vstock pusher comprising a sleeve, a stock-engaging aw integral with said sleeve, a mating aw interfitting with said rst mentioned jaw, and means for holding said jaws assembled to form a Astock receiving space therebetween of substantially uniform size from end to end.

2. A stock pusher comprising a sleeve, a

stock-engaging jawprojectmg from one end` portion of said sleeve, a mating jaw interfitting with said first mentioned jaw, and a spring for holding said jaws assembled to form a stock receiving space therebetween of substantially uniform size from end 'Lo end. Y

3. A .stock pusher comprising a sleeve, a r

vfitting with said first mentioned jaw, and a spring ring surrounding said jaws and acting to hold said jaws assembled substantially ico uniformly spacedk from end to end of said Y first jaw, and into clamping engagementv with stock extending through said sleeve.

5. A stock pusher comprising a sleeve cut away at one end to form a stock-engaging jaw having a shoulder at its outer end, a mating jaw lit-ting into said cut away portion and being Y notched to Y receive said shoulder, and one or more split spring rings surrounding said jaws and acting t0 holdsaid jaws assembled substantially uniformly spaced from end to end of saidjirst jaw, and inengagement with stock passing'- through said sleeve.

6. A stock pusher comprising ak sleeve eut away at one end to form a segmental stockengaging jaw having a shoulder at itsouter end, a mating segmental jaw fitting into said cut away portion and being notched to reengaging jawk having a shoulder at its outer end, a mating segmentaly jaw fitting into said cut away portion and being notched to receive said shoulder, and'one or more split spring rings surrounding said jaws and aeting tohold said jaws assembled substantially uniformly spaced from end to end of said first jaw,v and inV engagement with stock passing through said sleeve, said jaws being ofI reduced diameters between their ends forming shoulders to retain said rings in position. v Y

p 8. A stock pusher comprising a. sleeve, a stoclr-engagingjaw carried by said sleeve7 a second separate stockengaging jaw' interiit-k ting with said first jaw in manner to pre# vent relative axial disassembly thereof and substantially uniformly spacedv from end to end of said first jaw, and means,I for prevent-4 ing lateral disassembly,v thereof.rv Y Y In testimony whereof v have Vmy signature. c f

FRANK L. GONE. 

